All

Question 0

What is the name for solids that do not dissolve

Answer 0

Insoluble

Question 1

Solute + solvent=

Answer 1

Solution

Question 2

What is the name for the solids that do dissolve

Answer 2

Soluble

Question 3

If you mix water and an insoluble solid, what two things could happens

Answer 3

It goes cloudy

The solid sinks to the bottom

Question 4

What is a solution made up of

Answer 4

Solute (solid) and solvent (liquid)

Question 5

What does transparent mean

Answer 5

Solutions are transparent ie. clear/ see through

Question 6

What do you see when an insoluble solid is mixed with water

Answer 6

This is cloudy.

Question 7

What is the most common solvent

Answer 7

Water

Question 8

Why is water the most common solvent

Answer 8

Because it dissolves lots of different solutes

Question 9

What other liquids, apart from water can be used as a solvent

Answer 9

White spirit

Ethanol

Question 10

What happens if you keep adding solute to a solvent

Answer 10

It gets to a point where no more can dissolve, this is called a saturated solution.

Question 11

What is a saturated solution

Answer 11

Where the solvent can not dissolve any more of the solute

Question 12

If you have a saturated solution, how do you get it back to normal

Answer 12

By adding more solute

Buy increasing the temperature

Question 13

What is salt

Answer 13

A solid which dissolves in water. Which means it is soluble

Question 14

You can see through salt water, what word describes that

Answer 14

Transparent/ clear

Question 15

Solids that are like salt, what are they?

Answer 15

Soluble

Question 16

Chalk does not dissolve, what does that mean

Answer 16

It is insoluble

Question 17

When you mix chalk with water what happens

Answer 17

It goes cloudy

Question 18

When you mix sugar with water, which is which

Answer 18

Sugar is the solute

Water is the solvent

Question 19

Name a soluble solid

Answer 19

Salt
Water
Etc.

Question 20

A word to describe orange squash

Answer 20

Solution

Transparent

Question 21

What is a solute

Answer 21

A substance which dissolves

Question 22

What is a solvent

Answer 22

A liquid in which a solute dissolves

Question 23

What is a solution

Answer 23

A mixture produced when a solute dissolves in a solvent

Question 24

What does the term dissolve mean

Answer 24

When the solvent "breaks" apart the solute particles to form a solution

Question 25

What does the word insoluble mean

Answer 25

It describes a substance which does not dissolve in a solvent

Question 26

What does the word saturated mean

Answer 26

A solution containing the maximum amount of solute at a certain temperature

Question 27

What does suspension mean

Answer 27

A mixture of an insoluble solid and a liquid where the solid is evenly spread throughout the liquid

Question 28

What does solubility mean

Answer 28

The mass do solute which will dissolve in 100g of water at a certain temperature

Question 29

How are the particles in salt held together

Answer 29

In a fixed arrangement

Question 30

What can the particles in water do

Answer 30

Move around

Question 31

When the salt dissolves what happens to the particles

Answer 31

They are not held together anymore

Question 32

What do the particles in salt do to form a solution

Answer 32

Mix with the particles in water

Question 33

If you add 10g of salt and 100g of water what is the total mass of the solution

Answer 33

110g

Question 34

What can you use to separate sand from salty water

Answer 34

Filter paper

Question 35

Why does filter paper separate sand and salt water

Answer 35

Because the sand grains are to big to go through the tiny gaps in the filter paper

Question 36

Why won't the filter paper trap the salt

Answer 36

Because the particles of salt are very small, and they will fit through the holes

Question 37

According to solubility rules, what substances are soluble

Answer 37

``` Sodium Potassium Ammonium Nitrates Most sulphates Most chlorides ```

Question 38

What according to solubility rules are insoluble

Answer 38

``` Silver sulphate Barium sulphate Calcium sulphate Lead sulphate Silver chloride Lead chloride Most carbonates, oxides and hydroxides ```

Question 39

What is zinc oxide

Answer 39

Insoluble

Question 40

Potassium chloride

Answer 40

Soluble

Question 41

Sodium nitrate

Answer 41

Soluble

Question 42

Sodium hydroxide

Answer 42

Soluble

Question 43

Calcium nitrate

Answer 43

Soluble

Question 44

Lead carbonate

Answer 44

Insoluble

Question 45

Magnesium sulphate

Answer 45

Soluble

Question 46

Lead nitrate

Answer 46

Soluble

Question 47

How do you get salt out of salt water

Answer 47

You leave in a warm place and slowly the salt with turn into crystals and the water will evaporate.

Question 48

Name four ways of separating mixtures

Answer 48

Evaporation Filtering Magnets Sieve

Question 49

What is evaporation

Answer 49

Covertion of a liquid into a vapour/ gas

Question 50

What is condensation

Answer 50

Conversion of gas back to liquid

Question 51

What is distillation

Answer 51

Evaporation to condensation

Question 52

What is distillate

Answer 52

Something formed by distillation

Question 53

What types of energy is given out when burning food

Answer 53

Heat Light Chemical

Question 54

Which food would have the highest energy content

Answer 54

The one with the most calories/ kilajules

Question 55

How does a calormeter work?

Answer 55

Put food on the platinum tray. Seal the bomb. Pressure bomb with O2 to 8 bar (aprox). Add bomb to water reservoir. Use coil or wire to ignite food. Measure temperature change of water.

Question 56

What gas does a candle need to burn

Answer 56

Oxygen

Question 57

Where does gas exchange happen

Answer 57

In the alveoli

Question 58

What helps dissolve the alveoli

Answer 58

The thin layer of moisture The thin capillary walls The alveoli has a large surface area